sidewall

noun

1. The side of a tire.

   “If the puncture had been in the tread I could have had the tire patched, but it was in the sidewall and they can't fix that: they have to replace the whole tire.”

2. The wall forming the side of a structure; a side wall.
3. The wall forming the side of a structure; a side wall.

   “The kill shot may also be used against balls weakly played off the sidewall”

   “Mark flipped the ball to Jon for service. His high serve drifted perfectly down the left-hand court, and Mark's weakly hit return fell short off the sidewall.”

   “Further, the grazing blow caused the ball to pick up a furiously wicked spin, making it a madly twirling object. The ball skimmed off the sidewall near the corner and into the lower-right corner of the front wall.”